Question

Can someone please check this?

2x^2 + 50 = −20x
2x^2 + 20x + 50 = 0
2(x^2 + 10x + 25) = 0
2(x + 5)(x + 5) = 0
(x + 5)(x + 5) = 0

x + 5 = 0 or x + 5 = 0
x = − 5, x = − 5
The solution set is
{−5}.

Answer 1

that's right very good
but its better to write (x+5)²instead of (x+5)(x+5)